rear panel high frequency power amplifier with vacuum tubes |
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| navigate by keyword : amplifier amplify analog antenna big cabinet circuit close closeup component connector control controls device electrical electronic electronics engineering equipment expensive frequency glowing grade high large metal modern nobody object obsolete panel plug polished power powerful radio rear receiver retro shiny solid switch system techno technology transceiver tube tubes tumbler tuner tuning vacuum view vintage voltage |
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| Rear panel of a high frequency power amplifier with vacuum tubes close up view |
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